May

Results 2 issues of May

Adds support for multiple RK blocks. I see there's another PR open for this, but it's so old I figured it was okay to open a new one.

The correct value appears to have changed to 259 in Gen 8, per https://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_by_effort_value_yield. Providing 259 to the damage formula gives accurate results, whereas the existing value of 233 does...